galva



R. W. E. HAYES PUMP JACK.

APPLICATION FILED SEPT. 7. 1916.

2 SHEETSSHEET l.

r 1,379,917, Patented May31,1921.

R. W. E. HAYES.

PUMP JACK. APPLICATION FILED SEPT. 7, I916.

Patented May 31,1921;

2 SHEETS-SHEET 2.

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UNITED STATES. PATENT. OFFICE.

RALPH W. E. HAYES, GALVA, ILLINOIS AND rLAnTEnfooivrrAnY, on GALVA, ILLINOIS, a conronarron or ILLINQIS.

T all whom it mag concern:

Be it known that I, RALPH W. E. HAYns,

a citizen of the Unitecl ,States, residing at Galva in the county-of Henry and State of Illinois, have invented certain new and use ful Improvements in Pump-Jacks, of which thefollowing is a specification.

The present invention has to do wlth imthis kind are frequently used in connection with pumps when it is desired to drive the pump I, from a suitable source of rotary motion. i

In order to make a pump ack of general applicability for .use with different forms and styles of pump,- the jack should :be so constructed that it can be conveniently at tached either to a pump stand or to any conveniently located stationary part. In many cases, it will be desired to attach the jack directly to the pump stand, whereas in other cases it may be desired to mount the jack either on the floor, wall or ceiling of the pump room. Therefore, one of the objects 1 of the invention is to so construct the jack that it may be conveniently applied or. used in any of the mannersabove mentioned.

Furthe:|;'more, in. order to accommodate the jackto different sizes and styles of pump, I

the jack should be so constructed that it may be set to operate for different lengths of plunger stroke.

that the length of the stroke can be very conveniently and readily changed from time to time in order to meet the varying condi both of said disks or wheels to the pump rod.,

One result of this construction is to provide a jack having a width'somewhat greater than the distance between the said pitmen. On of the objects of the invention is-to so construct the jack that the fast and loosepulleys may be accommodated within the Therefore, another obj ect' of the invention is to so construct the jack i 'ruMP-JACK;

. nssrenonor ONE-HALF r0 HAYES runny v Specification of Letters Patent. Patented 1VIay31, 192 1 Application .filcd September 7, 1916. Serial No. 118,861. I

space necessary between thecrank wheels 1 within a minimum width and overall dimension. Another feature of the invention has reference to the'manner in which the fast and loose pulleys are journaled, and an object of this feature ofxthe invention is to to. provide a maximum length of journal, and consequently one best able to resist the "twisting forces andwean Another feature of the invention has ref erence to the form of the frame of the jack,

and an object inthisconnection is to sim plify this portion of the structure and give it added mechanical strength and rigidity.

. or disks, thus bringing the entire structure so construct the journals for said parts as I Other objects and uses of the invention 1 will appear from a detailed descriptionrof the same which consists .in the features of construction and combinations of parts hereinafter described and-claimed.

Referring to the drawings:

Figure 1 shows afperspective view of a. pump stand of familiar type having applied to the lower portion thereof the pump jack, to whichthe present invention relates;

F 2 shows a vertical section taken on the'line 2-2 of Fig. 1, looking in the direction of the arrows, the pulleys and rotating parts being shown in plan;

Fig. 3 shows anenlarged detail taken on j the line 3-3 of F ig. 2, looking'in the direction of the arrows; Fig. 4: shows a side elevation of that side of the structure opposite to the side which appears in perspectivein Fig. 1; and

Fig. 5 shows a vertical section taken on the line 5-5 of'Fig. 4, looking in the direc tion of the arrows.

Referring part1cularly to Fig. 1, the pump 9 stand in its entirety is designated by the numeral '6, and the jack in its entirety is designated by the numeral 7. The pump, rod 8 is to bereciprocated, andsuch reciprocation can be effected either by means of the handle 9 when the same is connected up, or by the pump jack.

The pump jackincludes the fast and loose pulleys 10 and 11 respectively, the gear wheel 12 which also serves as a crank disk, and the other crank disk 13. disks are connected to the plunger by means of the pitmen 14 and 15 respectively, said connection including a cross pin 16. Upon the rotation of the fast pulley, both of the These crank pitmen are oscillated up and down so as to drive the pump plunger.

The gear wheel 12 and the crank disk 13 are both fastened on the crank shaft 17, being keyed or otherwise conveniently secured to the same. Therefore, the driving of the gear serves to operate both pitmen.

The frame 18 is of peculiar construction. At one side it is provided with the upstanding journal web 19, the lower portion of which has the crosswise extending feet 20 and 21. These extend under the fast and loose pulleys a sufficient distance to give sidewise stability when the jack is to be fastened to the floor, wall or ceiling. An

arm 22 extends forwardly and upwardly from thelower portion of the frame, and the upper end of said arm carries a cross wise extending journal bearing 23, within which operates the shaft 1'7. In the upper portion of the web 19, is mounted a socket 2a into which seats a stub axle 25, and said axle may be locked into position in any convenient manner as by means of a setscrew 26. Both the fast and loose pulleys rotate on this axle, and they are held in place on the same by the flange 27 on the outer end of the axle. Said flange may be conveniently formed by upsetting the axle or in any other suitable manner.

The fast pulley 10 has its journal portion elongated and formed into a pinion 28, which pinion meshes directly with the gear 12. The frame is convenientlyformed so as to form a boxing or housing 29 over said pinion, as best shown in Figs. 2 and 5. By casting or otherwise forming the fast pulley and pinion either integral or as a rigid unitary structure, I provide an exceptionally long bearing for this rotating element on the axle 25 so as to very easily and perfectly take up the rotating and twisting forces whichwill be thrown upon the fast pulley when in operation. At the same time, the parts may be very easily set together or taken apart by simply loosening up the setscrew and either withdrawing or inserting the stub axle 25. 7

Each crank disk or wheel carries a crank pin 30 which engages the lower end of the corresponding pltmen. These crank pins preferably extend through the crank disk and the gear wheel, being held in place by means of nuts or the like 31. Both the crank disk and the gear wheel are provided with a plurality of crank pin holes 32 located at difierent radial positions, so that the stroke of the pitmen can be adjusted from time to time by simply setting the crank pins into the desired holes. In order to prevent the crank pins from loosening up, I have illus* trated each crank pin as being provided with a teat or the like 33 adapted to engage one or the other of the recesses 34 and 35 of the corresponding crank disk or wheel. It is thus evident that by the use of two recesses, the crank pin may be locked no matter into which hole it may be inserted.

It is frequently desirable to connect the pump jack directly to the pump stand instead of attaching the jack to the floor, wall or ceiling. In such case, a convenient portion of the jack frame may be provided with a not-ch or recess 36 adapted to seat firmly against the pump stand 31", and the jack may be secured in such position by means of bolts or the like 38 in conjunction with a cross plate 89. This makes the application 7 of the jack very flexible, so that it may be conveniently used in many different loca; tions and in connection with many different forms of pump stand.

It will be seen from the foregoing description that the herein disclosed construction is one in which all of the operative parts are so related to each other that they may be brought within a minimum space. It will be evident also, that the construction is such as to take up the strain between the parts in the most direct manner possible, and with the maximum amount of bearing surface.

I claim:

1. In combination with a pump stand upstanding from a stationary surface, a jack framework provided with a pedestal having a base located-immediately adjacent to the pump stand and provided with attaching points at widely varying distances from the pump stand or the like to afford rigid securement for the pedestal independently of additional connection with the pump stand or the like, a clamping bracket carried by the framework at a point above and standing inwardly from the base of the pedestal and adapted for clamping attachment to the pump stand or the like to supplement the support afforded by the base of the pedestal, a transverse bearing carried by the frame work on the near side of the pump stand or the like, a shaft working in said bearing, a crank disk on each end of said stub shaft, one of said crank disks being provided with a gear wheel, means for attaching a pitman to each crank shaft, a stub axle secured to the framework at a position adjacent to the aforesaid gear wheel and extending sidewise toward the other crank disk, a driving pulley mounted on said axle, said driving pulley having a lateral hub extension provided with pinion teeth meshing with said gear, and a loose pulley freely mounted on said axle adjacent to the driving pulley, both of said pulleys occupying a position between the crank disks, substantially as described.

2. In a jack adapted for operative connection with a reciprocating pump, the combination of a frame formed to present an arm to which is secured one end of a stub axle whose ends are substantially equidistant from the pump axis, 'two pulleys loosely mounted on the axle,one of which is formed with an elongated hub upon which is carried a pinion that lies to one side of its associated pulley, means for holding both pulleys in adjacent relation with their adjoining faces in a plane that is substantially radial to the pump axis, a rotatable shaft having fast thereon a disk in ad acent relation to one side of one pulley and a gear in adjacent relation to the opposite side of the, other pulley, the gear being in mesh i with the pinion, and two pitmen, one cona base located immediately adjacent the pump stand, and provided with attaching points at widely varying distances from-the pump stand or the like to afford rigid securenient for the pedestal independently of additional connection with the pump stand or the like, a clamping bracket carried by the framework at a point above and standing inwardly from the base of the pedestal and adapted for clamping attachment to the pump stand or the like to supplement the support afforded by the base of the pedestal, a transverse bearing carried by the framework on the near side of the pump stand or the like, a shaft working in said bearing, a crank disk on each-end of said shaft, one ofsaid crank disks being provided with a gear wheel, means for attaching a pitinan to each crank shaft, a stub axle se-.

cured to the framework at a position adjacent to the aforesaid gear wheel and ex tending sidewise toward the other crank disk, a driving pulleymounted on said. axle, means forent'raining said. driving pulley with said gear, and a loose pulley freely mounted on said axle adjacent to the driving pulley, substantially as described.

,aALrH w. n. HAYES.

Witnesses: 1 RAY "WALKER,

I H. O. MoCREIerI'r. 

